/* ==========================================================================
   NominaHQ — Components
   ========================================================================== */

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--font-body); font-weight: var(--weight-semibold); font-size: var(--text-sm);
  padding: 11px 24px; border-radius: var(--radius-md); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: background 150ms, color 150ms, border-color 150ms, transform 100ms, box-shadow 200ms;
}
.btn-primary { background: var(--nomina-blue); color: #fff; }
.btn-primary:hover { background: var(--nomina-blue-dark); box-shadow: var(--shadow-md); color: #fff; }
.btn-primary:active { transform: scale(0.98); }
.btn-secondary { background: transparent; color: var(--nomina-blue); border-color: var(--neutral-300); }
.btn-secondary:hover { background: var(--neutral-50); border-color: var(--neutral-400); }
.btn-cta { background: var(--nomina-amber); color: var(--neutral-950); }
.btn-cta:hover { background: var(--nomina-amber-dark); }
.btn-cta:active { transform: scale(0.98); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost-light:hover { background: rgba(255,255,255,.1); color:#fff; }
.btn-lg { padding: 14px 32px; font-size: var(--text-base); }
.btn-block { width: 100%; }

/* ---- Sticky nav ---- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}
.nav.scrolled { border-bottom-color: var(--neutral-200); box-shadow: var(--shadow-sm); }
.nav__inner { display: flex; align-items: center; gap: var(--space-8); height: 68px; }
.nav__brand img { height: 30px; width: auto; }
.nav__links { display: flex; align-items: center; gap: var(--space-6); margin-left: auto; }
.nav__link {
  font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--neutral-700);
  padding: var(--space-2) 0; position: relative; transition: color 150ms;
}
.nav__link:hover, .nav__link.active { color: var(--nomina-blue); }
.nav__actions { display: flex; align-items: center; gap: var(--space-4); }
.lang-toggle { display: inline-flex; gap: 6px; font-size: var(--text-sm); color: var(--neutral-400); }
.lang-toggle button {
  background: none; border: none; cursor: pointer; font: inherit; color: var(--neutral-500); padding: 2px;
}
.lang-toggle button.active { color: var(--nomina-blue); font-weight: var(--weight-semibold); }
.nav__toggle { display: none; background: none; border: none; cursor: pointer; padding: var(--space-2); }
.nav__toggle span { display: block; width: 22px; height: 2px; background: var(--neutral-800); margin: 4px 0; transition: .2s; }

@media (max-width: 1023px) {
  .nav__links {
    position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: flex-start;
    background: #fff; padding: var(--space-6); gap: var(--space-4); margin: 0;
    border-bottom: 1px solid var(--neutral-200); box-shadow: var(--shadow-lg);
    transform: translateY(-120%); transition: transform 300ms var(--ease-out-expo);
  }
  .nav__links.open { transform: translateY(0); }
  .nav__toggle { display: block; margin-left: auto; }
}

/* ---- Hero ---- */
.hero { position: relative; overflow: hidden; padding-block: var(--space-20) var(--space-24);
  background: radial-gradient(120% 120% at 50% -20%, var(--nomina-blue-50) 0%, #fff 60%); }
.hero__inner { max-width: 760px; }
.hero__logo { height: 72px; width: auto; margin-bottom: var(--space-8); }
@media (min-width: 1024px) { .hero__logo { height: 104px; margin-bottom: var(--space-10); } }
.hero h1 { font-size: var(--text-4xl); margin-bottom: var(--space-5); }
.hero .lead { font-size: var(--text-xl); color: var(--text-tertiary); margin-bottom: var(--space-8); max-width: 560px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.hero__note { margin-top: var(--space-5); font-size: var(--text-sm); color: var(--neutral-400); }
@media (min-width: 1024px) { .hero h1 { font-size: var(--text-6xl); } .hero { padding-block: var(--space-32); } }

/* ---- Pills / badges ---- */
.pill-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.pill {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--nomina-blue-700);
  background: var(--nomina-blue-50); border: 1px solid var(--nomina-blue-100);
  padding: 6px 14px; border-radius: var(--radius-pill);
}
.badge {
  display: inline-block; font-size: var(--text-xs); font-weight: var(--weight-semibold);
  text-transform: uppercase; letter-spacing: 0.04em; color: var(--neutral-950);
  background: var(--nomina-amber); padding: 4px 10px; border-radius: var(--radius-pill);
}

/* ---- Cards ---- */
.card { background: var(--surface-elevated, #fff); border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg); padding: var(--space-8); box-shadow: var(--shadow-sm); }
.card-interactive { transition: transform 250ms var(--ease-out-expo), box-shadow 250ms var(--ease-out-expo); }
.card-interactive:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card__icon { color: var(--nomina-blue); margin-bottom: var(--space-4); }
.card__icon svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: var(--space-2); }
.card p { color: var(--text-secondary); font-size: var(--text-base); }
/* card-as-link: keep card text dark regardless of section background */
a.card { color: var(--text-secondary); text-decoration: none; }
a.card h3, a.card strong { color: var(--text-primary); }

/* ---- Bold brand-blue section (logo blue, white content) ---- */
.bg-blue { background: linear-gradient(160deg, var(--nomina-blue), var(--nomina-blue-700)); color: rgba(255,255,255,.86); }
.bg-blue h1, .bg-blue h2, .bg-blue h3 { color: #fff; }
.bg-blue .eyebrow { color: var(--nomina-amber-300); }
.bg-blue .section-head p, .bg-blue .lead { color: rgba(255,255,255,.82); }
.bg-blue > .container > p { color: rgba(255,255,255,.82); }
.bg-blue a:not(.btn):not(.card) { color: var(--nomina-amber-300); }
.bg-blue .card, .bg-blue .pricing-card { background: #fff; color: var(--text-secondary); border-color: rgba(255,255,255,0.001); }
.bg-blue .card h3, .bg-blue .pricing-card h3, .bg-blue .pricing-card .amount { color: var(--text-primary); }
.bg-blue .pill { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.22); color: #fff; }
.bg-blue .cta-band { background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.28); }
.bg-blue .cta-band h2 { color: #fff; }
.bg-blue .cta-band p { color: rgba(255,255,255,.85); }

/* ---- Feature rows (alternating) ---- */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: center; }
.feature-row + .feature-row { margin-top: var(--space-24); }
.feature-row__visual { background: var(--nomina-blue-subtle); border: 1px solid var(--neutral-200);
  border-radius: var(--radius-xl); min-height: 320px; box-shadow: var(--shadow-md);
  display: flex; align-items: center; justify-content: center; color: var(--neutral-400); }
.feature-row ul { list-style: none; padding: 0; margin-top: var(--space-5); display: grid; gap: var(--space-3); }
.feature-row li { display: flex; gap: var(--space-3); color: var(--text-secondary); }
.feature-row li svg { flex: none; width: 20px; height: 20px; color: var(--nomina-blue); margin-top: 3px; }
@media (max-width: 1023px) {
  .feature-row { grid-template-columns: 1fr; gap: var(--space-8); }
  .feature-row + .feature-row { margin-top: var(--space-16); }
  .feature-row--reverse .feature-row__visual { order: -1; }
}

/* ---- Pricing ---- */
.pricing-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-6); align-items: start; }
.pricing-card { position: relative; background: #fff; border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg); padding: var(--space-8); box-shadow: var(--shadow-sm); }
.pricing-card.featured { border-color: rgba(12,96,173,.15); box-shadow: var(--shadow-glow); }
.pricing-card.featured::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px;
  background: var(--nomina-amber); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.pricing-card .badge { position: absolute; top: -12px; right: var(--space-6); }
.pricing-card h3 { font-size: var(--text-xl); }
.price { display: flex; align-items: baseline; gap: 6px; margin: var(--space-4) 0; }
.price .amount { font-size: var(--text-4xl); font-weight: var(--weight-bold); color: var(--text-primary); }
.price .per { color: var(--text-tertiary); font-size: var(--text-sm); }
.price-note { font-size: var(--text-sm); color: var(--neutral-400); margin-bottom: var(--space-6); }
.feature-list { list-style: none; padding: 0; margin: 0 0 var(--space-8); display: grid; gap: var(--space-3); }
.feature-list li { display: flex; gap: var(--space-3); font-size: var(--text-sm); color: var(--text-secondary); }
.feature-list svg { flex: none; width: 18px; height: 18px; color: var(--success); margin-top: 2px; }
@media (max-width: 1023px) { .pricing-grid { grid-template-columns: 1fr; } }

/* ---- CTA band ---- */
.cta-band { background: linear-gradient(135deg, var(--nomina-blue-100), var(--nomina-blue-50)); border: 1px solid var(--nomina-blue-200);
  border-radius: var(--radius-xl); padding: var(--space-16); text-align: center; box-shadow: var(--shadow-sm); }
.cta-band h2 { margin-bottom: var(--space-3); }
.cta-band p { margin: 0 auto var(--space-8); color: var(--text-secondary); font-size: var(--text-lg); }
.cta-band .hero__actions { justify-content: center; }

/* ---- Inputs / forms ---- */
.input, .field {
  width: 100%; padding: 11px 14px; font: inherit; color: var(--text-primary);
  background: #fff; border: 1px solid var(--neutral-300); border-radius: var(--radius-sm);
  transition: border-color 150ms, box-shadow 150ms;
}
.input:focus, .field:focus { border-color: var(--nomina-blue); box-shadow: 0 0 0 3px rgba(12,96,173,.12); outline: none; }
.input::placeholder { color: var(--neutral-400); }
label { display: block; font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--neutral-700); margin-bottom: var(--space-2); }

/* ---- Accordion (FAQ) ---- */
.accordion { max-width: 760px; }
.accordion__item { border-bottom: 1px solid var(--neutral-200); }
.accordion__btn { width: 100%; background: none; border: none; cursor: pointer; font: inherit;
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
  padding: var(--space-5) 0; text-align: left; color: var(--text-primary); font-weight: var(--weight-semibold); font-size: var(--text-lg); }
.accordion__icon { flex: none; width: 22px; height: 22px; position: relative; transition: transform .2s; color: var(--nomina-blue); }
.accordion__panel { overflow: hidden; max-height: 0; transition: max-height 300ms var(--ease-out-expo); }
.accordion__panel-inner { padding-bottom: var(--space-5); color: var(--text-secondary); }
.accordion__item.open .accordion__icon { transform: rotate(45deg); }

/* ---- Trust / logos strip ---- */
.trust { display: flex; flex-wrap: wrap; gap: var(--space-4) var(--space-8); align-items: center; justify-content: center; }

/* ---- Calculator ---- */
.calc__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: start; }
.calc__form { display: grid; gap: var(--space-5); }
.calc__field { display: grid; gap: var(--space-2); }
.calc__field .hint { font-size: var(--text-xs); color: var(--neutral-400); }
.calc__result { background: var(--nomina-blue-subtle); border: 1px solid var(--nomina-blue-100); position: sticky; top: 92px; }
.calc__result h3 { margin-bottom: var(--space-4); }
.calc__lines { display: grid; gap: var(--space-2); }
.calc__line { display: flex; justify-content: space-between; gap: var(--space-4); padding: var(--space-3) 0; border-bottom: 1px solid var(--nomina-blue-100); font-size: var(--text-sm); }
.calc__line span:first-child { color: var(--text-secondary); }
.calc__line span:last-child { font-weight: var(--weight-semibold); color: var(--text-primary); font-variant-numeric: tabular-nums; }
.calc__line.is-total { border-bottom: none; margin-top: var(--space-2); padding-top: var(--space-4); border-top: 2px solid var(--nomina-blue-200); }
.calc__line.is-total span { font-size: var(--text-xl); color: var(--nomina-blue-800); }
.calc__line.is-deduct span:last-child { color: var(--error); }
.calc__legal { margin-top: var(--space-8); }
@media (max-width: 1023px) { .calc__grid { grid-template-columns: 1fr; } .calc__result { position: static; } }

/* ---- Article / prose (guías) ---- */
.article-header { max-width: 720px; margin: 0 auto var(--space-10); text-align: center; }
.article-header .cat { font-size: var(--text-sm); font-weight: var(--weight-semibold); color: var(--nomina-blue); letter-spacing: 0.03em; text-transform: uppercase; }
.article-header h1 { margin: var(--space-3) 0; }
.article-header .meta { color: var(--text-tertiary); font-size: var(--text-sm); }
.prose { max-width: 680px; margin: 0 auto; font-size: var(--text-lg); line-height: var(--leading-relaxed); color: var(--neutral-700); }
.prose > * + * { margin-top: var(--space-5); }
.prose h2 { font-size: var(--text-2xl); margin-top: var(--space-12); }
.prose h3 { font-size: var(--text-xl); margin-top: var(--space-8); }
.prose ul, .prose ol { padding-left: var(--space-6); display: grid; gap: var(--space-2); }
.prose strong { color: var(--text-primary); }
.prose table { width: 100%; border-collapse: collapse; font-size: var(--text-base); }
.prose th, .prose td { text-align: left; padding: var(--space-3); border-bottom: 1px solid var(--neutral-200); }
.prose th { color: var(--text-primary); font-weight: var(--weight-semibold); background: var(--neutral-50); }
.prose blockquote { border-left: 3px solid var(--nomina-blue); background: var(--nomina-blue-subtle); padding: var(--space-4) var(--space-5); border-radius: 0 var(--radius-md) var(--radius-md) 0; font-size: var(--text-base); color: var(--neutral-700); }
.prose .source { font-size: var(--text-sm); color: var(--text-tertiary); }
.related { max-width: 680px; margin: var(--space-16) auto 0; }
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 640px) { .related-grid { grid-template-columns: 1fr; } }

/* ---- Footer ---- */
.footer { background: linear-gradient(160deg, var(--nomina-blue-800), var(--nomina-blue-900)); color: rgba(255,255,255,.82); padding-block: var(--space-20) var(--space-8); }
.footer a { color: rgba(255,255,255,.82); }
.footer a:hover { color: #fff; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-8); }
.footer__brand img { height: 34px; filter: brightness(0) invert(1); margin-bottom: var(--space-4); }
.footer h6 { color: #fff; font-size: var(--text-sm); font-weight: var(--weight-semibold); margin-bottom: var(--space-4); letter-spacing: 0.02em; }
.footer ul { list-style: none; padding: 0; display: grid; gap: var(--space-3); font-size: var(--text-sm); }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4);
  margin-top: var(--space-16); padding-top: var(--space-6); border-top: 1px solid rgba(255,255,255,.14);
  font-size: var(--text-sm); color: rgba(255,255,255,.6); }
@media (max-width: 1023px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__grid { grid-template-columns: 1fr; } }